Unit 9: Linear Functions and Graphs
the change in height by the change in horizontal distance
What is gradient?
The distance around a shape. Found by adding up all of the sides.
a special chart that uses "slices" to show relative sizes of data.
What is a pie chart?
An angle between 180 and 360 degrees
What is a reflex angle?
A ratio that represents the same proportions
What is an equivalent ratio?
The value when when x = 0
What is the y-intercept?
Multiply the base with the height, and then divide by 2.
What is the formula for the area of a triangle (How do you calculate the area of a triangle)?
A table used to displayed data that has be written down in a list
What is a frequency table?
Two angles that sum to 90 degrees
What are complimentary angles?
Divide the numerator by the denominatior
How do you convert a fraction to a decimal?
A line with the equation x = k
What is a vertical line?
Add the two parallel sides, divide by two and then multiply by the height.
What is the area of a trapezium (How do you calculate the area of a trapezium)?
When one variable increases, the other also increases. (Or when one variable decreases, the other decreases)
What is positive correlation?
What are co-linear points?
Multiply the value by the percentage divided by 100
How do you calculate the percentage of a value?
Calculate the total distance, which will be the vertical change. Then divide it by the total time, which will be the horizontal change.
How do you calculate average speed (From a graph)?
Half of the diameter
What is a radii (How do you calculate the radius)?
The largest value minus the smallest value
What is the range (How do you calculate the range)?
a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.
What are alternate angles?
Subtract the new value by the old value. Divide by the old value. Multiply by 100
How do you calculate percentage change?
Plot the y-intercept first. Then use the gradient to find the next point(s)
How do you plot a straight line (In the form y=mx+c)?
Pi times the radius squared
How do you calculate the area of a circle (What is the area of a circle)?
observes the rising or falling trend of a set of numerical data over a period of time.
What is a line graph?
Subtract 2 from the number of sides. Then multiply by 180. Then divide by the number of sides
How do you calculate the interior angles of a regular polygon?
What is the unitary method?